Finding the Fourth Proportional to 658,677.42, 908,963.01 and 372,191.31
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Solution
The fourth proportional to 658,677.42, 908,963.01 and 372,191.31 is: 513,617.32
Step by Step Solution
- Step 1: Write the proportion equation
658,677.42 : 908,963.01 = 372,191.31 : x - Step 2: Convert to fraction form
658,677.42/908,963.01 = 372,191.31/x - Step 3: Cross multiply
658,677.42x = 908,963.01 × 372,191.31 - Step 4: Simplify right side
658,677.42x = 338,308,133,433.44 - Step 5: Solve for x
x = 338,308,133,433.44/658,677.42 - Step 6: Final answer
x = 513,617.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.